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Finding the Third Proportional to 380.25 and 587.16

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Solution

The third proportional to 380.25 and 587.16 is: 906.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.25 : 587.16 = 587.16 : x
  2. Step 2: Convert to fraction form
    380.25/587.16 = 587.16/x
  3. Step 3: Cross multiply
    380.25x = 587.16 × 587.16
  4. Step 4: Simplify right side
    380.25x = 344,752.46
  5. Step 5: Solve for x
    x = 344,752.46/380.25
  6. Step 6: Final answer
    x = 906.65

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.